🤖 Anthropic has released its new flagship model, Claude Fable 5.
The model possesses deep knowledge and is capable of solving complex engineering tasks. It supports a context window of 1 million tokens and an output of up to 128,000 tokens. Two versions are available: Claude Fable 5 with strict safety rules and Claude Mythos 5 without them. API pricing: $10 per 1 million input tokens and $50 per 1 million output tokens.
🌍 The release of Fable 5 sets a new standard for complexity: the model is capable of autonomous refactoring of entire libraries and systemic design.
👤 The model is extremely powerful but expensive and slow. It is ideal for deep programming but requires strict budget control.
Source 1: https://simonwillison.net/2026/Jun/9/claude-fable-5/